三维超声在诊断胎儿前腹壁缺陷中的临床应用

Clinical application of three-dimensional ultrasonography in the diagnosis of anterior abdominal wall defects in fetus

目的探讨三维超声在胎儿前腹壁缺陷诊断中的价值。方法 917例孕18～38周孕妇,应用二维超声和三维超声检测不同孕周胎儿前腹壁,比较其显示率。结果三维超声对前腹壁显示率低于二维超声(P﹤0.05),随着孕周的增加,羊水量呈下降趋势,三维超声对前腹壁的显示也降低。前腹壁缺陷24例,其中脐膨出17例,腹裂7例。二维超声诊断胎儿前腹壁缺陷23例,检出率为95.8%;1例脐膨出未检出,1例脐膨出误诊为腹裂,诊断准确率为91.7%。三维超声对胎儿前腹壁缺陷的诊断率为100%;1例脐膨出误诊为腹裂,诊断准确率为95.8%。结论三维超声与常规二维超声结合有助于胎儿前腹壁缺陷的确诊。

Objective To investigate the clinical value of three-dimensional uhrasonography in the diagnosis of anterior abdominal wall defects in fetus. Methods Two-dimensional（2D） and three-dimensional（3D） ultrasonography were applied to observe the development of anterior abdominal wall in fetuses in 917 cases at gestational week from 18 to 38 weeks. The detectable rates of anterior abdominal wall in fetuses at different gestational week between 2D and 3D ultrasonography were compared. Results The displaying rate of anterior abdominal wall by 3D ultrasonography was lower compared to 2D ultrasonography （P〈0.05）.With the increase of gestational weeks, and amniotic fluid decrease tended to decline. 23 cases anterior abdominal wall defet were found in 20 ultrasonography, one case omphalocele wasn＇t found, one case omphalocele misdiagosis as gastroschisis, diagnosis rate was 95.8% and accuracy rate was 91.7%. The unterior abdominal wall defects were found in 24 cases, 3D ultrasound anterior abdominal wall defect diagnosis rate was 100%; one case omphalocele misdiagnosed as gastroschisis, diagnosis accuracy rate was 95.8%. The omphalocele 17 cases, gastroschisis 7 cases. Conclusion The combination of 2D and 3D uhrasonography contributes to the diagnosis of anterior abdominal wall defects in fetus.